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Design - Interview Questions and Answers for 'Eci telecom' - 5 question(s) found - Order By Newest

Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews.
  Q1. Differences between abstract class and interface ?Core Java
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Ans. Abstract classes can have both abstract methods ( method declarations ) as well as concrete methods ( inherited to the derived classes ) whereas Interfaces can only have abstract methods ( method declarations ).

A class can extend single abstract class whereas it can implement multiple interfaces.

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Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback)
  Q2. Explain Singleton Design Pattern ?Design
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Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html

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 Q3. Write code for singleton classDesign

Ans. http://javasearch.buggybread.com/CodeSnippets/searchCodeSamples.php?keyword=singleton+class&category=code

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   Like      Discuss      Correct / Improve     singleton  code  coding  design pattern     ECI Telecom      Intermediate        frequent


Very Frequently asked to Senior Software Engineers or Developers.
  Q4. Describe some of the Design Patterns you have used ?Design2016-12-01 16:31:17

Ans. [Open Ended Answer]

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 Q5. Design a Coffee machine using Oops concepts.Design2017-06-13 20:26:14

 This question was recently asked at 'ECI Telecom'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve     design  design a coffee machine     ECI Telecom




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